Home / 31,585.36-43,587.12-18,156.26

Finding the Fourth Proportional to 31,585.36, 43,587.12 and 18,156.26

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Solution

The fourth proportional to 31,585.36, 43,587.12 and 18,156.26 is: 25,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,585.36 : 43,587.12 = 18,156.26 : x
  2. Step 2: Convert to fraction form
    31,585.36/43,587.12 = 18,156.26/x
  3. Step 3: Cross multiply
    31,585.36x = 43,587.12 × 18,156.26
  4. Step 4: Simplify right side
    31,585.36x = 791,379,083.37
  5. Step 5: Solve for x
    x = 791,379,083.37/31,585.36
  6. Step 6: Final answer
    x = 25,055.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.